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All Journal JURNAL TEKNOLOGI LINGKUNGAN Transparansi Hukum Tematik : Jurnal Teknologi Informasi Komunikasi Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Envirous Jurnal Pengbdian Teknik Mesin Biomedical and Mechanical Engineering Journal Computing Jurnal Informatika Journal of Education, Religious, and Instructions (JoERI) Serambi Engineering Jurnal Sistem Informasi Karya Anak Bangsa BEKTI : Jurnal Pengabdian Kepada Masarakat International Journal of Education Management and Religion
Sutiyono
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Sintesis dan Karakterisasi Komposit Silika Karbon dari Abu Bagasse (Ampas Tebu) Muhammad Mufti Wibawa; Muhammad Athallah Rifqi Shafwan; Sutiyono
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Silica carbon composite is a mixture of polar inorganic silica and non-polar organic carbon. One of the applications of this composite is as an effective adsorbent, capable of absorbing metal ions. Bagasse ash is a material that contains a relatively high amount of silica. In this study, bagasse ash will be utilized as a constituent in the fabrication of silica-carbon composites. In this study, bagasse ash was extracted with NaOH at concentrations of 1N, 1.5N, 2N, 2.5N, and 3N. The filtrate from the extraction, in the form of Na2SiO3, will undergo dilution with demineralized water at a ratio of 1:1, 1:2, 1:3, 1:4, and 1:5. The variation in NaOH concentration and Na2SiO3 dilution ratio is designed to ascertain the impact of these conditions and conditions with the Si/C content most analogous to the optimum Si/C ratio. The findings indicated that the optimal silica carbon composite was achieved at a NaOH concentration of 1.5, with a silica content of 68.3% and a carbon content of 25.76%, resulting in a Si:C ratio of 2.65:1. In contrast, a NaOH concentration of 2N, with a silica content of 55.58% and a carbon content of 35.97%, yielded a Si:C ratio of 1.54:1. The results of the XRD analysis demonstrated that the silica carbon composite did not exhibit any crystalline phase peaks. Instead, a range of 15–30° was observed, with the highest peak located at 2θ = 30.1226°. This finding indicates that the silica carbon composite is amorphous.
Model Of A Quality Assurance System Based On ISO 21001:2018 And Its Application In Education Sutiyono; Agus Zaenul Fitri; As’aril Muhajir
International Journal of Education Management and Religion Vol. 2 No. 2 (2025): July 2025
Publisher : Pondok pesantren As-salafiyah As-Safi'iyyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71305/ijemr.v2i2.327

Abstract

This article explores the development of a quality assurance system model grounded in ISO 21001:2018 and its practical implementation within educational institutions. ISO 21001:2018 is an internationally recognized standard specifically tailored for Education Organization Management Systems (EOMS), aiming to enhance the effectiveness of educational processes while meeting the needs and expectations of learners and other stakeholders. This study employs a literature review methodology using a descriptive-analytical approach to examine the core principles and operational requirements of the standard. The findings highlight ISO 21001:2018’s emphasis on a process-based management approach, continuous quality improvement, and learner-centered outcomes. Successful implementation of the standard necessitates strong leadership commitment, adequate training of human resources, and the establishment of a sustainable internal evaluation and audit mechanism. By adopting ISO 21001:2018, educational institutions can foster a structured culture of quality that systematically supports improved learning performance and institutional accountability.
Co-Authors Agus Zaenul Fitri Ahmad Khairul Faizin Andini, Atika Anggriawan, Rizqi Rendri Astika , Ria As’aril Muhajir Atika Andini Denny Rusdianto Diana Salendra DWI LESTARI, WAHYU Indah Nur Fauziyah INFORMATIKA, COMPUTING Irpan, Ade j-sika Khilda Nistrina Kumalasari , Nurya L.Urip Widodo, Yohandrik Novel Karaman Ludi Zaelani Luluk edahwati Luluk Edahwati Lusy Larasati A Marwintaria, Vike Aprilianin Mubin , Kholifatul Muhammad Athallah Rifqi Shafwan Muhammad Makmun, Muhammad Muhammad Mufti Wibawa Nandini, Atika Ndaru Adyono Ndaru Adyono, Ndaru Puspa Sari, Tria Radissa Dzaky Issafira Rangga kurniawan Ria Naf'ana Riniasih , Wahyu Rosmalina Santi Sri Muljani Sukiman Suprihatin Suryanadi, Juni SURYANI Sutawan , Komang Temu, Sri Titi Susilowati Tria Puspa Sari Wahyu Dwi Lestari Wahyu Dwi Lestari Edahwati Wiliandi Saputro Zulfian , Firhan Adam